dorsal/arxiv
View SchemaOne-qubit reduced states of a pure many-qubit state: polygon inequalities
| Authors | A. Higuchi, A. Sudbery, J. Szulc |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0209085 |
| URL | https://arxiv.org/abs/quant-ph/0209085 |
| DOI | 10.1103/PhysRevLett.90.107902 |
| Journal | Phys. Rev. Lett. 90,107902 (2003) |
Abstract
We show that a necessary and sufficient condition for a set of $n$ one-qubit mixed states to be the reduced states of a pure $n$-qubit state is that their smaller eigenvalues should satisfy polygon inequalities: no one of them can exceed the sum of the others.
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"abstract": "We show that a necessary and sufficient condition for a set of $n$ one-qubit\nmixed states to be the reduced states of a pure $n$-qubit state is that their\nsmaller eigenvalues should satisfy polygon inequalities: no one of them can\nexceed the sum of the others.",
"arxiv_id": "quant-ph/0209085",
"authors": [
"A. Higuchi",
"A. Sudbery",
"J. Szulc"
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"doi": "10.1103/PhysRevLett.90.107902",
"journal_ref": "Phys. Rev. Lett. 90,107902 (2003)",
"title": "One-qubit reduced states of a pure many-qubit state: polygon inequalities",
"url": "https://arxiv.org/abs/quant-ph/0209085"
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